d5b31eeddb
Backend Hub now sends raw AgentEvent in stream payloads instead of the old delta/final/error state machine. Update StreamPayload type to use event field, add extractTextFromEvent helper, and rewrite gateway store handler to dispatch on event.type (message_start/update/end). Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
49 lines
1.4 KiB
TypeScript
49 lines
1.4 KiB
TypeScript
/** Stream Action - 流式消息传输 */
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export const StreamAction = "stream" as const;
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/**
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* AgentEvent types forwarded by the Hub to frontend clients.
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* These mirror the subset of AgentEvent from @mariozechner/pi-agent-core
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* that the Hub forwards (filtered at the Hub layer).
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*/
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export interface StreamMessageEvent {
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type: "message_start" | "message_update" | "message_end";
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message: {
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id?: string;
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role: string;
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content?: Array<{ type: string; text?: string }>;
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};
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assistantMessageEvent?: unknown;
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}
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export interface StreamToolEvent {
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type: "tool_execution_start" | "tool_execution_end";
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toolCallId: string;
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toolName: string;
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args?: unknown;
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result?: unknown;
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isError?: boolean;
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}
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export type StreamEvent = StreamMessageEvent | StreamToolEvent;
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/** 流消息 payload — wraps a raw AgentEvent with stream/agent identifiers */
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export interface StreamPayload {
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/** 流 ID，关联同一个流的所有消息 */
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streamId: string;
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/** 所属 agent ID */
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agentId: string;
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/** Raw agent event from the engine */
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event: StreamEvent;
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}
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/** Extract plain text from an AgentMessage content array */
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export function extractTextFromEvent(event: StreamMessageEvent): string {
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const content = event.message?.content;
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if (!Array.isArray(content)) return "";
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return content
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.filter((c) => c.type === "text")
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.map((c) => c.text ?? "")
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.join("");
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}
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